Printer&#39;s quoin chase



Dec. 5, 1933. F. x. SMITH PRINTERS QUOIN CHASE Filed Feb. 12, 1951 I I I llllllll III I n uenior A llorney Patented Dec. 5, 1933 UNITED STATES PATENT OFFICE 2 Claims.

The primary object of the invention resides in the embodiment of a printers quoin into a chase. The type of quoin per se is set forth in U. S. Letters Patent No. 1,486,422, dated March 11, 1924 of which I am now assignee of the entire right, title and interest by way of assignment recorded in the transfer of patents, Liber C-147 Page 19. It has been found that by combining this construction of quoin with a chase, much time and labor is saved in the locking of a type form as the quoins are always at hand for ready adjustment.

Another feature of the invention is the provision of recesses in the inner faces of the chase frame, to enable the movable parts of the quoin to be housed when the chase is not in use to protect the edges of the said parts against chipping and damage caused by the rough handling to which chases are subjected.

'20 A further object is to provide a printers quoin chase by which an even and uniform pressure may be applied to the type form supported therein, which eliminates the danger now existing in the present construction of chases wherein it is possible to tighten one quoin more than another, which often results in the type form dropping from the chase.

A still further object is the provision of a printers quoin chase in which the quoins open square and true, and hold the type form securely at any point of expansion which insures a firm even look up that cannot jar loose by careless handling.

With these and other objects in view, the invention resides in the certain novel construction,

combination and arrangement of parts, the essential features of which are hereinafter fully described, are particularly pointed out in the appended claims, and are illustrated in the accompanying drawing, in which:

Figure 1 is a top plan view of my improved quoin chase showing a type form in position therein.

Figure 2 is a fragmentary sectional perspective view showing the quoin members in an expanded position.

Figure 3 is an enlarged vertical transverse sectional view on the line 3-3 of Figure 1.

Figure 4 is a view similar to Figure 3, but taken on the line 44 of Figure 1.

Figure 5 is a fragmentary topplan view illustrating the quoin in an extended position.

Figure 6 is a top plan view of a side or foot stick embodying the features of the quoin set forth in the previous view.

Referring to the'drawing by reference characters, the numeral 10 designates my improved printers quoin chase in its entirety which includes a rectangular or other shaped chase frame 11 which has spaced quoins 12 mounted therein on two or more of its inner sides and mom of its ends on the exterior of the said frame. In Figure 1 of the drawing I have illustrated the quoin chase in use wherein a type form 13 is securely held'in clamped position within the chase frame by the quoins 12 and which clamping action is produced in a manner now to be explained.

The sides of the chase frame 11 in which the quoins 12 are mounted are provided with spaced channels or recesses 14 which open through the inner walls of the chase frame, while the said inner walls of the frame adjacent the recesses or channels 14 are providedwith countersinks 15 which form overhanging flanges 16 at the top and botlom sides of the chase frame. Opening into each of the channels or recesses 14 centrally between opposite ends of the recesses are threaded bores 17 which threadedly receive screws 18, the upper or top ends of which are provided with square sockets 19 for the reception of the squared end of the quoin key usually employed for actuating the quoin to an adjusted position. The inner end of each screw 18 is pointed or rounded as at 20 for a purpose to be presently explained.

Each quoin member 12 includes a flat clamping plate or jaw 21 of a size to snugly fit within a countersink, 15, while extending inwardly from the clamping jaw 21 is a horizontal flange or rib 22 which extends the full length of the jaw 01' plate 21. The flange 22 is of a width approximating the depth of one of the recesses 14 in which it is received, while each of the flanges 22 midway. between the ends thereof is provided with an inclined portion 23 disposed in the path of the rounded end 20 of the screw 18.

For the purpose of guiding each quoin member during its movement, I rivet or otherwise fixedly secure studs 24 in the chase frame 11, there being two of such studs for each quoin member. The inner ends of the studs 24 terminate in slightly enlarged heads 25 which are slidable in bores 26 provided in the quoin members adjacent opposite ends thereof. The inner ends of the bores 26 are reduced in diameter to snugly receive the shanks of the studs 24, while interposed between each head 25 and a shoulder formed by the reduction in the diameter of the bore 26 is an expansion spring 2'7. By reference to Figure 2 of the drawing, it will be noted that the tendency of the springs 27 is to urge the quoin members 12 to retracted position, but which springs permit the quoin members to be moved to extended position upon the actuation of the adjusting screws 18.

From the description thus far, it will be seen that by inserting a key into the socket 19 of one of the adjusting screws 18, the said screw may be turned in either direction, and by turning the same in one direction, the quoin member will be moved to extended position against the action of the springs 2'7 and by turning the said screw in an opposite direction, the quoin member will be moved to a retracted position within its countersink 15. The two studs 24 assure a true movement of the quoin member in opposite directions, and thereby prevent any rocking or tilting of the quoin member which would tend to interfere with the accurate locking of the type form in the chase frame.

With reference to Figures 3 and 4, it will be seen that the overhanging flanges 16 formed by countersinking the inner walls of the frame adjacent the quoin receiving recesses, that the edges of the clamping plate or jaw 21 is protected against chipping when the quoin members are in fully retracted position, it being the practice-to move the quoin members to such position after the use of the quoin chase. Such chases are often subjected to rough usage which might easily cause damage to the quoin members and tend to knock the same out of true alinement with respect to the frame.

By reference to Figure 3 it will be noted that the turning movement of the screw 18 of any one of the quoin units causes the rounded end 20 to coact with the inclined face 23 to exert a wedging action upon the quoin member to move the same outwardly against the tension of the spring In looking a type form in a chase frame, it is essential that a uniform pressure be applied to each of the quoins on the inside of the frame to prevent any possibility of one quoin being turned to a position where it would exert a greater pressure than another. In order to assure a uniform A adjustment of the various quoins, I provide a printers point scale 28 on the top of each of the quoin members 12. It is preferable to, provide the graduations adjacent one of the ends of the quoin member as best seen in Figure 5 of the drawing. As above mentioned, the graduations constitute a point scale in which seventy-two points equal one inch, and which scale is read in conjunction with the inner edge of the frame 11. It will be understood that when a quoin member is in a fully retracted position, none of the graduations are visible, but automatically appear in view as the quoin member is moved to an extended or clamping position. It will therefore be seen that an operator after adjusting one of the quoins to the desired pressure, may then actuate the other quoins to exert a like pressure in order that uniform pressure is exerted to the type form to be held in the chase frame.

It will also be seen that by countersinking the inner quoins in the chase frame permits the use of loose quoins in connection therewith, and further, facilitates the reception of a maximum size type form or one approximating the inside measurements of the chase. The quoins will securely lock such type form in position which dispenses with the necessity of running a larger chase frame which would be necessary if space were to be required between the walls of the frame and the type form to receive the loose quoins as is the usual practice.

By providing a point scale in connection with the quoins, an accurate register can be obtained between the various type form set ups necessary for printing two or more colors. An equal amount of pressure set up by the quoins of the respective chase frames may be obtained thus avoiding the time and labor now required in the adjusting of the type forms so that the second and succeeding colors register during a multi-color printing process. By using the same furniture, reglets, leads and slugs in each set up, it becomes only necessary to tighten the quoins of the various chase frames in accordance with the reading of the point scale of the first color set up to insure accurate register and impression.

In Figure 6 I have illustrated the same principle and construction as set forth in the previous views with the exception that these features are By reference to Figure 1 of the drawing, it will be noted that I have provided quoins 12 in the outer walls of one end of the chase frame. These quoins may be adjusted to lock against the bearer of the press to securely hold the chase in an accurate position in the bed thereof.

While I have shown and described what I deem H to be the most desirable embodiments of my invention, I wish it to be understood that various changes in construction may be resorted to if desired, and I do not wish to limit myself to the precise structural details herein set forth, nor to anything less than the whole of my invention, limited only by the appended claims.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent is:-

1. A printers quoin chase comprising a chase frame having a recess therein opening through the inner wall thereof, a quoin member provided with a horizontal flange having an inclined portion, said flange being positioned within said recess, and adjustable means perpendicular to the upper face of said flange and provided with an inner beveled end coacting with said inclined portion for extending said quoin member from said chase frame, a printers point scale provided on said quoin member on the top face and adjacent one end thereof and concealed when said quoin member is fully seated insaid recess and adapted to be read in conjunction with the inner wall of said chase frame when extended therefrom, and spring means acting upon said quoin member to move the same toward said frame.

2. In a printers quoin chase, a chase frame having a rectangular shaped counter sink in the inner wall thereof and an elongated recess opening within said counter sink, a quoin member comprising an elongated horizontal flange, and a rectangular shaped fiat clamping plate integral therewith, the flange being positioned in said recess, while the flat clamping plate is adapted to seat in said counter sink when said quoin member is in fully retracted position, adjustable means coacting with theflange for moving the clamping plate outward of said counter sink and a printers point scale provided on the upper side of said clamping plate and flange at one end thereof and concealed when said plate is seated in said countersink, said scale being visible as the plate and flange move outwardly and adapted to 5 be read in conjunction with the inner wall of said chase frame.

' FRANCIS X. SMITH. 

